Nikkei

NEW YORK — Wall Street took a drubbing for the second straight day as investors worry that an economic slowdown in emerging markets could trigger a correction in stocks. The Dow Jones industrial average suffered a drop of 318.24 points Friday, the worst one-day plummet since June of last year. The blue-chip index has plunged almost 500 points during the two-day rout, and follows big drops in European and Asian markets. QUIZ: How much do you know about the Dow? Investors were rattled by a confluence of problems around the world: A dour economic report in China, political unrest in Turkey and financial turmoil in Argentina. But one of the biggest concerns is that the Federal...